2018DIN EN ISO 5175-2:2018 Gas welding equipment - Safety devices - Part 2: Not incorporating a flame (flashback) arrestor (ISO 5175-2:2017); German version EN ISO 5175-2:2017
2003DIN EN 730-2:2003 Gas welding equipment - Safety devices - Part 2: Not incorporating a flame (flashback) arrestor; German version EN 730-2:2002